Food cooling unit



FIG. 1 is a front left perspective view of a food cooling unit showing my new design;

FIG. 2 is a front perspective view thereof;

FIG. 3 is a rear perspective view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof; and,

FIG. 6 is a top plan view thereof.

The broken lines in the drawings illustrate the portions of the design that form no part of the claim. 

CLAIM The ornamental design for a food cooling unit, as shown and described. 